I referred to the first in a series of articles by the economist in this thread. The second article, about surveillance and government intrusion, was published last week, here IT USED to be easy to tell whether you were in a free country or a dictatorship. In an old-time police state, the goons are everywhere, both in person and through a web of informers that penetrates every workplace, community and family. They glean whatever they can about your political views, if you are careless enough to express them in public, and your personal foibles. What they fail to pick up in the cafÃ© or canteen, they learn by reading your letters or tapping your phone. The knowledge thus amassed is then stored on millions of yellowing pieces of paper, typed or handwritten; from an old-time dictator's viewpoint, exclusive access to these files is at least as powerful an instrument of fear as any torture chamber. Only when a regime falls will the files either be destroyed, or thrown open so people can see which of their friends was an informer.